におい物質を含んだ気体の流れが水晶振動子においセンサーに及ぼす影響について(機械力学,計測,自動制御)

概要

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In this paper, we studied the influence of the gas flow on the characteristics of the quartz odorsensor experimentally. The AT cut quartz odor sensor was used to decrease the noise of temperature and the dimethvl sulfide was used as a target gas with discomfort odor. Moreover, the cholesterol film was used ;s the sensing film deposited on the quartz surface for the detection of the dimethyl sulfide. The experimental results are summarized as follows. 1) The flow velocity has a strong effect on the performance of the quartz odor sensor. Moreover, the increase in the gas velocity has an effect to decrease the frequency change of the quartz odor sensor within the present experimental conditions. 2) The gas velocity component parallel to the quartz surface can deform the curve of frequency change with time strongly and degrades the sensitivity of the quartz odor sensor.
社団法人日本機械学会の論文
2007-01-25